Battery cell 21700 nominal voltage

What is a 21700 battery?

A 21700 battery is a type of rechargeable lithium-ion battery cell. It is one of the most popular and commonly found cells in various applications, including electric vehicles, battery-powered construction equipment, portable power tools, and emergency torches/flashlights, among others.

What are some common uses of 21700 batteries?

21700 battery is one of the most popular and commonly found cells in the battery pack in electric vehicles, battery-powered construction equipment, portable power cutting/drilling tools, the emergency torch, flashlight, etc. after 18650 battery cells.

Why is the 21700 lithium battery a good choice?

The 21700 lithium cell is a good choice because it offers longer run time, high output current, and a high energy capacity. Its safety properties also make it popular among tech industries, providing a replacement option for corded tools in various applications.

What is a 21700 cell?

Contact us now to discuss your requirements. What is a 21700? At it’s most basic an 21700 is a Li-Ion (Lithium Ion) cylindrical cell that uses its dimensions as it’s designation. The first two digits are the approximate diameter, in this case 21mm and the following 3 digits are the approximate height in tenths of millimeters, in this case 70mm.

What is the difference between 21700 and 18650 batteries?

Essentially, the only physical difference is the size. 21700 cells are slightly larger than 18650 batteries. With the increase in size, there is also an increase in capacity or energy/power. Generally, the capacity, or mAh (milliamp hours), ranges from 3000mAh up to 5000mAh.

What is the best 21700 mAh cell?

The SAMSUNG INR21700-40T is a high capacity 4000mAh cell, with a high maximum continuous discharge rate of 35A. This is one of the best 21700 cells on the market, striking a great balance with very high capacity, whilst also having Ultra-High Discharging/Drain capabilities without any compromise.